Method for improving psychophysiological function for performance under stress

ABSTRACT

A method of improving psychophysiological function of a subject performing a stress-inducing activity using a computer includes, after a plurality of sensors that monitor stress-indicating physiological parameters have been coupled to the subject and to the computer, providing, by the computer to the subject, a set of training segments that each present the subject with one or more visual, audible, or tactile prompts, wherein in at least one of the training segments, the prompts induce the subject to simultaneously perform both the stress-inducing activity and a relaxation-inducing protocol. The computer provides the set of training segments until a value of at least one physiological parameter that indicates stress in the subject is within a pre-defined range of a baseline value of the parameter, thereby indicating that the subject has successfully performed the stress-inducing activity while maintaining alertness with a relative minimum of stress.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of prior application Ser. No.15/202,894, filed Jul. 6, 2016, now U.S. Pat. No. 9,668,693, which is acontinuation of prior application Ser. No. 14/823,662, filed Aug. 11,2015, now U.S. Pat. No. 9,402,581, which is a divisional of priorapplication Ser. No. 14/309,497, filed Jun. 19, 2014, now U.S. Pat. No.9,138,558. The contents of these prior Applications are incorporatedherein by reference in their entireties.

TECHNICAL FIELD

The present invention relates to psychophysiological function, and moreparticularly to apparatus and methods for computer-implementedimprovement of psychophysiological function.

BACKGROUND ART

It is known in the prior art to measure physiological parameters duringtraining. United States application publication number 2006/0057549 A1discloses training for attaining a physiological state consistent withthe successful performance of a task, wherein the training takes placein the physical environment of the task in question (putting green,tennis court, lacrosse field, etc.) and the training comprises staticrepetition of the task in the presence of information related to theuser's physiological state during iterations of the task.

United States application publication number US2009/0137915 A1, whichdoes not disclose training, does disclose determining the state ofoverlap between biological systems which exhibit oscillatory behaviorsuch as heart rhythms, respiration, blood pressure waves, low frequencybrain waves, based on a determination of heart rate variability (HRV),and an evaluation of the power spectrum thereof.

In addition the following patent publications concern related subjectmatter: US20100022852A1, US20080214903A1, US20090105605A1,US20030009087A1, US20080171914A1, US20120116176A1, US20090082685A1, andUS20110015468A1.

SUMMARY OF THE EMBODIMENTS

In a first embodiment of the invention there is provided acomputer-implemented method for improving psychophysiological functionfor performance of a subject under stress. The method of this embodimentincludes:

-   -   after a plurality of sensors that monitor stress-indicating        physiological parameters have been coupled to the subject, in a        baseline computer process, obtaining from the sensors baseline        measurements of a baseline set of stress-indicating        physiological parameters and storing the baseline measurements;    -   in a stress determination computer process, causing the subject        to be exposed to a second plurality of potentially        stress-inducing activities while obtaining from the sensors        stress-condition measurements of the baseline set of parameters        and storing the stress-condition measurements;    -   in a relaxation determination computer process, causing the        subject to be exposed to a third plurality of potentially        relaxation-inducing protocols while obtaining from the sensors        relaxation-condition measurements of the baseline set of        parameters and storing the relaxation-condition measurements;        and    -   in a characterization computer process, retrieving the baseline,        stress-condition, and relaxation-condition measurements, and        using them to identify a selected parameter, which is one of the        baseline set of parameters, as particularly indicative of stress        and of relaxation in the subject, and with respect to the        selected parameter, identifying a selected stress-inducing        activity and a selected relaxation-inducing protocol pertinent        to the subject, and storing data characterizing the selected set        of stress-inducing activities and the selected set of        relaxation-inducing protocols pertinent to the subject.

Optionally, the method further includes in a training computer process,providing training in carrying out the selected relaxation-inducingprotocol in a manner tending to cause achievement of coherence. In afurther related embodiment providing training includes, in a firsttraining segment, exposing the subject to the selectedrelaxation-inducing protocol alone until there is achieved a targetedlevel of the selected parameters as to be indicative of coherence in thesubject. Optionally, the method further includes in a targetdetermination process, retrieving the baseline, stress-condition, andrelaxation-condition measurements, and using the retrieved measurements,together with a set of measurements obtained in the training computerprocess, to determine the targeted level of the selected parameters,wherein the targeted level is re-determined in the course of eachtraining segment.

In another related embodiment, training further includes, in a secondtraining segment, next exposing the subject to the selectedrelaxation-inducing protocol in the presence of feedback indicative ofthe value of the selected parameter until there is achieved the targetedlevel of the selected parameter as to be indicative of coherence in thesubject. Optionally, providing training thereafter includes, in a thirdtraining segment, exposing the subject only to feedback indicative ofthe value of the selected parameter until there is achieved the targetedlevel of the selected parameter as to be indicative of coherence in thesubject. As a further option, providing training thereafter includes, ina fourth training segment, exposing the subject to the selectedrelaxation-inducing protocol in the presence of (i) feedback indicativeof the value of the selected set of parameters and (ii) promptspresenting the selected set of stress-inducing activities, until thereis achieved the targeted level of the selected set of parameters as tobe indicative of coherence in the subject.

As yet a further option, providing training thereafter includes, in afifth training segment, exposing the subject only to (i) feedbackindicative of the value of the selected set of parameters and (ii)prompts indicative of the selected set of stress-inducing activities,until there is achieved the targeted level of the selected set ofparameters as to be indicative of coherence in the subject. In a stillfurther option, providing training thereafter includes, in a sixthtraining segment, exposing the subject only to prompts indicative of theselected set of stress-inducing activities until there is achieved thetargeted level of the selected set of parameters as to be indicative ofcoherence in the subject.

In another related embodiment, one of the relaxation-inducing protocolsis passive muscle relaxation, and the passive muscle relaxation isstructured in a manner tending to cause achievement of coherence. Inanother related embodiment, one of the relaxation-inducing protocols isautogenics, and the autogenics is structured in a manner tending tocause achievement of coherence. In another related embodiment, one ofthe relaxation-inducing protocols is guided imagery and the guidedimagery is structured in a manner tending to cause achievement ofcoherence. In yet another related embodiment, one of therelaxation-inducing protocols is mindfulness, and the mindfulness isstructured in a manner tending to cause achievement of coherence. Inanother related embodiment, one of the relaxation-inducing protocols iscontrolled breathing, and the controlled breathing is structured in amanner tending to cause achievement of coherence.

In another embodiment, the invention provides a computer-implementedmethod for improving psychophysiological function for performance of asubject under stress. The method of this embodiment includes:

-   -   after a plurality of sensors that monitor stress-indicating        physiological parameters have been coupled to the subject,        exposing the subject, using computer processes, to a series of        training segments as follows:    -   in a first training segment, exposing the subject to a        relaxation-inducing protocol alone until there is achieved a        targeted level of at least one stress-indicating physiological        parameter as to be indicative of coherence in the subject;    -   in a second training segment, next exposing the subject to a        relaxation-inducing protocol in the presence of feedback        indicative of the value of at least one stress-indicating        physiological parameter until there is achieved the targeted        level of the at least one parameter as to be indicative of        coherence in the subject;    -   in a third training segment, exposing the subject only to        feedback indicative of the value of at least one parameter until        there is achieved the targeted level of the at least one        parameter as to be indicative of coherence in the subject;    -   in a fourth training segment, exposing the subject to a        relaxation-inducing protocol in the presence of (i) feedback        indicative of the value of at least one of the parameters        and (ii) prompts presenting at least one of the stress-inducing        activities, until there is achieved the targeted level of at        least one parameter as to be indicative of coherence in the        subject.    -   in a fifth training segment, exposing the subject only to (i)        feedback indicative of the value of at least one of the        parameters and (ii) prompts presenting at least one of the        stress-inducing activities, until there is achieved the targeted        level of at least one parameter as to be indicative of coherence        in the subject.    -   in a sixth training segment, exposing the subject only to        prompts indicative of at least one of stress-inducing activities        until there is achieved the targeted level of at least one        parameter as to be indicative of coherence in the subject.

Optionally, using computer processes further includes, in a targetdetermination process, using a set of measurements obtained in thetraining computer process, to determine the targeted level of the atleast one stress-indicating physiological parameter, wherein thetargeted level is re-determined in the course of each training segment.

Also optionally, using computer processes further includes, the courseof each segment, providing, to the subject, feedback indicative of adegree to which the subject has achieved the targeted level of the atleast one parameter as to be indicative of coherence in the subject.

As a further option the feedback includes a visual component, and thevisual component is in the form of a virtual race involving virtualobjects, wherein a first virtual object represents achievement by thesubject in reaching the targeted level of the at least one parameter,and other distinct virtual objects represent distinct amounts ofshortfall by the subject in reaching the targeted level of the at leastone parameter.

In another embodiment, the invention provides a computer-implementedmethod for improving psychophysiological function for performance of asubject under stress. The method of this embodiment includes:

-   -   after a plurality of sensors that monitor stress-indicating        physiological parameters have been coupled to the subject,        exposing the subject, using computer processes, to at least one        training segment during which is determined a degree to which        the subject has achieved a targeted level of least one        stress-indicating physiological parameter as to be indicative of        coherence in the subject; and    -   providing, to the subject, feedback indicative of the degree to        which the subject has achieved the targeted level of the at        least one parameter as to be indicative of coherence in the        subject.

In a further related embodiment, the feedback includes a visualcomponent, and the visual component is in the form of a virtual raceinvolving virtual objects, wherein a first virtual object representsachievement by the subject in reaching the targeted level of the atleast one parameter, and other distinct virtual objects representdistinct amounts of shortfall by the subject in reaching the targetedlevel of the at least one parameter.

In another embodiment, the invention provides a sensor interface deviceproviding a set of sensor outputs characterizing a set of physiologicalparameters to a computer running a training program for training toimprove psychophysiological function for performance under stress. theapparatus of this embodiment includes:

-   -   a microcontroller, including an analog-to-digital converter and        a processor;    -   a set of sensor inputs coupled to the microcontroller; and    -   an output port, coupled to the microcontroller, that is        configured to be coupled to the computer;    -   wherein the processor is running a communication program that        handles all communication with the training program and formats        incoming data received at the sensor inputs in a manner        permitting consumption of that data by the training program,        including for purposes of display, storage, and manipulation.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing features of embodiments will be more readily understood byreference to the following detailed description, taken with reference tothe accompanying drawings, in which:

FIG. 1 is a block diagram of logical flow in an embodiment of a methodin accordance with the present invention;

FIG. 2 is block diagram of architecture of a system, in accordance withan embodiment of the present invention, for carrying out the methodembodiment of FIG. 1;

FIG. 3 is a front perspective view of a sensor interface device inaccordance with an embodiment of the present invention;

FIG. 4 is a rear perspective view of the sensor interface device of FIG.3;

FIGS. 5 and 6 are detailed block diagrams of logical flow of anembodiment of the present invention, providing a sample of the range ofcapabilities of a rather fully implemented embodiment;

FIG. 7 is a block diagram of logical flow of an embodiment, similar tothat of FIG. 1, that provides further details;

FIG. 8 is block diagram of logical flow of an embodiment of the presentinvention in which training is provided;

FIG. 9 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 1, in which stress testing isperformed;

FIG. 10 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 1, in which relaxation testingis performed;

FIG. 11 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 8, in which basic training isprovided;

FIG. 12 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 8, in which advanced trainingis provided;

FIG. 13 is a representation of a display of a welcome screen, by asubject's computer, in accordance with an embodiment of the presentinvention, wherein the computer is running a program for training thesubject to improve psychophysiological function;

FIG. 14 is a representation of a display of an attach-equipment screenassociated with the program of FIG. 13;

FIG. 15 is a representation of measurement data, as a function of time,that is transmitted by a sensor interface device to the subject'scomputer when the subject is receiving training while the subject'scomputer is running the program of FIG. 13;

FIG. 16 is a representation of a screen display associated with astress-inducing activity (Stroop test) established and monitored by theprogram of FIG. 13;

FIG. 17 is a representation of a screen display associated with astress-inducing activity (math test) established and monitored by theprogram of FIG. 13;

FIG. 18 is a representation of a screen display associated with astress-inducing activity (sound test) established and monitored by theprogram of FIG. 13;

FIG. 19 is a representation of a screen display associated with astress-inducing activity (stressful event recall) established andmonitored by the program of FIG. 13;

FIG. 20 is a representation of a display of a stress profile screen,wherein the results of activities associated with FIGS. 16-19 aresummarized and presented visually to the subject by the program of FIG.13;

FIG. 21 is a representation of screen display associated with testing,for effectiveness of controlled breathing for use in a relaxationprotocol, established and monitored by the program of FIG. 13;

FIG. 22 is a representation of a screen display associated with testing,for effectiveness of passive muscle relaxation for use in a relaxationprotocol, established and monitored by the program of FIG. 13;

FIG. 23 is a representation of a screen display associated with testing,for effectiveness of autogenics for use in a relaxation protocol,established and monitored by the program of FIG. 13;

FIG. 24 is a representation of a screen display associated with testing,for effectiveness of guided imagery for use in a relaxation protocol,established and monitored by the program of FIG. 13;

FIG. 25 is a representation of a screen display associated with testing,for effectiveness of mindfulness for use in a relaxation protocol,established and monitored by the program of FIG. 13;

FIG. 26 is a representation of a display of a relaxation profile screen,wherein the results of activities associated with FIGS. 21-25 aresummarized and presented visually to the subject by the program of FIG.13;

FIG. 27 is a representation of a screen display detailing a synthesizedsummary of the results associated with FIGS. 20 and 26, together with andetailed course of action that the subject will be caused to follow oversubsequent iterations of the program of FIG. 13;

FIG. 28 is a representation of a screen display providing a visualtemplate for the course of action associated with FIG. 27 by the programof FIG. 13;

FIG. 29 is a representation of a visual progression of training sessionsassociated with the course of action presented in FIG. 27 that thesubject will experience in a sequenced manner as a function of theprogram of FIG. 13, from Basic Training I, II, and III through AdvancedTraining I, II, and III;

FIG. 30 is a representation of a screen display associated with thefirst of three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 31 is a representation of a screen display associated with thesubject's attainment of a specific goal, established by the resultsassociated with FIGS. 20, 26, and 27, during the first of three basictraining sessions that the subject will undergo as established by thecourse of action associated with FIG. 27 by the program of FIG. 13;

FIG. 32 is a representation of a screen display associated with thesubject's failure to attain a specified goal, established by the resultsassociated with FIGS. 20, 26, and 27, during the first of three basictraining sessions that the subject will undergo as established by thecourse of action associated with FIG. 27 by the program of FIG. 13;

FIG. 33 is a representation of screen display associated with the secondof three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 34 is a representation of a screen display associated with thethird of three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 35 is a representation of a screen display associated with thefirst of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 36 is a representation of a screen display associated with thesecond of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 37 is a representation of a screen display associated with thethird of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13;

FIG. 38 is a representation of a display of an end screen by the programof FIG. 13;

FIG. 39 is block diagram of architecture of a microcontroller processassociated with the system architecture of FIG. 2, in accordance with anembodiment of the present invention, for carrying out the methodembodiment of FIG. 1;

FIG. 40 is block diagram of architecture of a power conditionerassociated with the system architecture of FIG. 2, in accordance with anembodiment of the present invention, for carrying out the methodembodiment of FIG. 1;

FIG. 41 is block diagram of architecture of a skin conductance sensorsystem associated with the system architecture of FIG. 2, in accordancewith an embodiment of the present invention, for carrying out the methodembodiment of FIG. 1;

FIG. 42 is block diagram of architecture of a respiration rate sensorsystem associated with the system architecture of FIG. 2, in accordancewith an embodiment of the present invention, for carrying out the methodembodiment of FIG. 1;

FIG. 43 is block diagram of architecture of a heart rate sensor systemassociated with the system architecture of FIG. 2, in accordance with anembodiment of the present invention, for carrying out the methodembodiment of FIG. 1; and

FIG. 44 is block diagram of architecture of a skin temperature sensorsystem associated with the system architecture of FIG. 2, in accordancewith an embodiment of the present invention, for carrying out the methodembodiment of FIG. 1.

DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS

Definitions. As used in this description and the accompanying claims,the following terms shall have the meanings indicated, unless thecontext otherwise requires:

The term “stress-indicating physiological parameter” means aphysiological parameter, associated with a subject, with respect towhich a change in value may be indicative of stress experienced by thesubject. Typical stress-indicating physiological parameters are heartrate, respiration rate, skin conductance, skin temperature, muscletension, and EEG alpha, beta, and delta brain waves.

The term “coherence” of a subject means a state of the subject whereinthe subject maintains alertness with a relative minimum of stress.

A “set” has at least one member.

A “stress-inducing activity” is an activity carried out by a subjecttending to cause the subject to experience stress.

A “relaxation-inducing protocol” is a series of procedures carried outby a subject tending to cause relaxation in the subject.

“Feedback indicative of the value of a parameter” means informationprovided, under computer program control, on a recurrent basis to thesubject about the value of the parameter. The information may beprovided in any of a variety of forms, including visual, audible, andtactile, or combinations of these forms. For example, the informationmay be provided by visual indication, such as on a display of computer,and can be in the form of text (wherein the parameter value is given,for example, as a number), or a graph (wherein value of the parametercan be shown evolving over time), or a color or other indication basedon a mapping between color and parameter value. Alternatively, or inaddition, the information may be provided in the form of sound, forexample in headphones or a loudspeaker, and the sound may be spokenwords characterizing the value of the parameter, or it may be a set ofdistinct sounds where each member of the set is selected for usedepending on the value of the parameter.

A “prompt presenting a stress-inducing activity” means a presentation tothe subject, under computer program control, of an activity determinedto induce stress in the subject, wherein the presentation may beprovided in any of a variety of forms, including visual, audible, andtactile, or combinations of these forms. If the presentation is visual,it may involve, for example, a quiz provided in the form of text on acomputer screen. On the other hand, the presentation may be audible, inthe form of a quiz provided orally under computer control.

“Feedback indicative of a degree to which the subject has achieved atargeted level of at least one parameter” means information provided,under computer program control, on a recurrent basis to the subject,about the degree to which the subject has achieved the targeted level ofthe at least one parameter. The information may be provided in any of avariety of forms, including visual, audible, and tactile, orcombinations of these forms. For example, the information may beprovided by visual indication, such as on a display of computer, and canbe in the form of text, or a graph, or a color or other indication basedon a mapping between color and parameter value. Alternatively, or inaddition, the information may be provided in the form of sound, forexample in headphones or a loudspeaker, and the sound may be spokenwords, or it may be a set of distinct sounds where each member of theset is selected for use depending on the extent to which the subject hasachieved the targeted level of the at least one parameter.

A “computer process” is the performance of a described function in acomputer using computer hardware (such as a processor,field-programmable gate array or other electronic combinatorial logic,or similar device), which may be operating under control of software orfirmware or a combination of any of these or operating outside controlof any of the foregoing. All or part of the described function may beperformed by active or passive electronic components, such astransistors or resistors. In using the term “computer process” we do notnecessarily require a schedulable entity, or operation of a computerprogram or a part thereof, although, in some embodiments, a computerprocess may be implemented by such a schedulable entity, or operation ofa computer program or a part thereof. Furthermore, unless the contextotherwise requires, a “process” may be implemented using more than oneprocessor or more than one (single- or multi-processor) computer.

FIG. 1 is a block diagram of logical flow in an embodiment of a methodin accordance with the present invention. In accordance with thisembodiment, a computer program (sometimes called “the trainingprogram”), which is run on a computer operated by the subject, carriesout a series of processes. In operation of the embodiment, the sensorinterface device described below in connection with FIGS. 2-4 is coupledto the computer, and a set of sensors is coupled to the sensor interfacedevice and to the subject. In process 101, baseline testing of thesubject is performed and the data resulting from such baseline testingis stored. In process 103, stress profile testing of the subject iscarried out, and the data resulting from such stress profile testing isstored. In process 105, relaxation profile testing of the subject isperformed, and the data resulting from such relaxation profile testingis stored. Finally, in process 107, the stored data are retrieved, andthe total subject baseline profile, stress profile, and relaxationprofile are characterized. As described in more detail below, thischaracterization permits identification of a parameter that isparticularly indicative of stress and of relaxation in the subject. Inview of this identification, a set of relaxation-inducing protocols maybe developed to train the subject to achieve coherence.

FIG. 2 is block diagram of architecture of a sensor interface device, inaccordance with an embodiment of the present invention, for carrying outthe method embodiment of FIG. 1. The sensor interface device includes adata acquisition (DAQ) board 209 that has a set of analog prefilters213, 215, 217, and 219, and a microcontroller 221. The microcontroller221 includes a processor 227 and an analog-to-digital converter 225, andprovides a sensor data output to a user computer 231. Each of fourdifferent sensors 201, 203, 205, and 207, is coupled to theanalog-to-digital converter 225 through a corresponding analog prefilter213, 215, 217, and 219. The microcontroller 221 is coupled to usercomputer 231, and the coupling may, for example, be over a USB link orwirelessly using a Bluetooth protocol. The DAQ board 209 and itscomponents may be powered by a battery 235 through a powerregulator/conditioner 233, or by the user computer 231 via the USB link.Similarly, a microphone 211 is coupled to the analog-to-digitalconverter 225 through analog prefilter 223 to permit audio input to themicrocontroller 221, and an LCD display 229 is coupled to themicrocontroller 221 to permit display of information regarding thefunctioning of the sensor interface device. Additionally, a speaker 230is coupled to the microcontroller 221 to permit audio output ofinformation regarding the functioning of the sensor interface device Themicrocontroller 221 runs a communication program that handles allcommunication with the training program and formats the incoming datafrom the sensors 201, 203, 205, and 207 in a manner permittingconsumption of that data by the training program, including for purposesof display, storage, and manipulation. This communication programeffectively provides a wrapper around the USB communicationfunctionalities of the operating system of the computer 231. Theaforementioned components may be operatively assembled using materialsand techniques currently known in the art, however their collectiveoperation in accordance with various embodiments of the invention isnew.

FIG. 3 is a front perspective view of a sensor interface device inaccordance with an embodiment of the present invention. Wire 301 acts asa ground to the sensor interface device. Cables 303, 305, 307, and 309connect to sensors measuring skin conductance, respiration rate, heartrate, and skin temperature, respectively, as shown in more detail inconnection with FIGS. 41-44. It should be appreciated that theassignment of cables to sensors is purely exemplary, and that differentembodiments may assign the cables to the sensors in a different physicalor logical order. LEDs 311, 313, 315, and 317 indicate whether thesensors that are connected to the sensor interface device via cables303, 305, 307, and 309 are functioning properly. LED 319 indicateswhether communication between the sensor interface device and thecomputer 231 is occurring wirelessly via Bluetooth protocols. LCDdisplay 321 displays information regarding the functioning of the sensorinterface device. Speaker 323 emits audio information. Button 325 powersthe sensor interface device on and off. USB cable 327 connects thesensor interface device to computer 231 as an alternative or supplementto the use of Bluetooth protocols for communication between the sensorinterface device and the computer.

FIG. 4 is a rear perspective view of the sensor interface device of FIG.3. Cables 303, 305, 307, and 309 connect to sensors measuring skintemperature, heart rate, skin conductance, and respiration rate,respectively. USB cable 327 connects the sensor interface device tocomputer 231. Door 409 allows access to the batteries that power thesensor interface device.

FIGS. 5 and 6 are detailed block diagrams of logical flow of anembodiment of the present invention, providing a sample of the range ofcapabilities of a rather fully implemented embodiment. In process 501, aprogram running in the computer 231 determines whether the sensingequipment (namely the sensors and the sensor interface device) iscoupled to the computer 231. Until the determination is positive, theprogram continues to loop back to the beginning. Upon a determinationthat the equipment is coupled to the computer 231, the program causes awelcome screen to be presented in process 503. In process 505 and 507,the program running in the computer 231 determines whether the equipment(namely the sensors and the sensor interface device) is calibrated(namely, able to obtain measurements) to the computer 231. Until thedetermination is positive, the program continues to loop back to thebeginning of process 507. Upon a determination that the equipment iscalibrated to the computer 231, the program initiates process 509,wherein the program running in the computer 231 determines whether thesubject has undergone Baseline Profile testing. If the determination ofprocess 509 is negative, the program initiates process 511, BaselineProfile testing, and loops back until the determination of process 509is positive. With a positive determination of process 509, the programrunning in the computer 231 initiates process 513, wherein the programrunning in the computer 231 determines whether the subject has undergoneStress Profile testing. If the determination of process 513 is negative,the program initiates process 515, Stress Profile testing, and loopsback until the determination of process 513 is positive. With a positivedetermination of process 513, the program running in the computer 231initiates process 601, wherein the program running in the computer 231determines whether the subject has undergone Relaxation Profile testing.If the determination of process 601 is negative, the program initiatesprocess 603, Stress Profile testing, and loops back until thedetermination of process 601 is positive. With a positive determinationof process 601, the program running in the computer 231 initiatesprocess 605, wherein the program running in the computer 231 retrievesdata from processes 511, 515, and 603 and characterizes this data as thesubject's total Baseline, Stress, and Relaxation Profile. In process 607the program running in the computer 231 determines whether the subjecthas passed the basic training program. If the determination of process607 is negative, the program initiates process 609, wherein the subjectundergoes the basic training program, and loops back until thedetermination of process 607 is positive. With a positive determinationof process 607, the program running in the computer 231 initiatesprocess 611, wherein the program running in the computer 231 determineswhether the subject has undergone the advanced training program. If thedetermination of process 611 is negative, the program initiates process613, wherein the subject undergoes the advanced training program, andloops back until the determination of process 611 is positive, therebycausing the program running on computer 231 to end.

FIG. 7 is a block diagram of logical flow of an embodiment, similar tothat of FIG. 1, which provides further details. In process 701, theprogram running in the computer 231 calibrates the sensing equipment(namely the sensors and the sensor interface device) that is coupled tothe computer 231. In process 703, the program running in the computer231 determines whether all of the sensors are functioning properly.Until the determination is positive, the program continues to loop backto the beginning. Upon a determination that the equipment is functioningproperly, the program initiates process 705, wherein the program runningin the computer 231 determines whether the subject has undergoneBaseline Profile testing. If the determination of process 705 isnegative, the program initiates process 707, Baseline Profile testing,and loops back until the determination of process 705 is positive. Witha positive determination of process 705, the program running in thecomputer 231 initiates process 709, wherein the program running in thecomputer 231 determines whether the subject has undergone Stress Profiletesting. If the determination of process 709 is negative, the programinitiates process 711, Stress Profile testing, and loops back until thedetermination of process 709 is positive. With a positive determinationof process 709, the program running in the computer 231 initiatesprocess 713, wherein the program running in the computer 231 determineswhether the subject has undergone Relaxation Profile testing. If thedetermination of process 713 is negative, the program initiates process715, Relaxation Profile testing, and loops back until the determinationof process 713 is positive. With a positive determination of process713, the program running in the computer 231 initiates process 717,wherein the program running in the computer 231 retrieves data fromprocesses 707, 711, and 715 and characterizes this data as the subject'stotal Baseline, Stress, and Relaxation Profile.

FIG. 8 is block diagram of logical flow of an embodiment of the presentinvention in which training is provided. In process 801, the programrunning in the computer 231 determines whether the subject has passedthe basic training program. If the determination of process 801 isnegative, the program initiates process 803, wherein the subjectundergoes the basic training program, and loops back until thedetermination of process 801 is positive. With a positive determinationof process 801, the program running in the computer 231 initiatesprocess 805, wherein the program running in the computer 231 determineswhether the subject has undergone the advanced training program. If thedetermination of process 805 is negative, the program initiates process807, wherein the subject undergoes the advanced training program, andloops back until the determination of process 805 is positive, therebycausing the program running on computer 231 to end.

FIG. 9 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 1, in which the Stress Profiletesting is performed. In process 901, the program running in thecomputer 231 initiates measurement and recording of the subject'sbaseline readings (e.g. heart rate, skin conductance, skin temperature,and respiration rate) for a specified period of time. In process 903,the program running in the computer 231 initiates a math test, whereinthe subject is prompted to answer a series of math questions within aspecified period of time. During process 903, the subject's stresscondition measurements (e.g. heart rate, skin conductance, skintemperature, and respiration rate) are measured and recorded. In process905, the program running in the computer 231 initiates a recoveryperiod, wherein the subject is prompted to recover from the previoustesting for a specified period of time. During process 905, thesubject's baseline measurements in recovery are measured and recorded.In process 907, the program running in the computer 231 initiates asound test, wherein the subject is exposed to a series of discordantsounds within a specified period of time. During process 907, thesubject's stress condition measurements are measured and recorded. Inprocess 909, the program running in the computer 231 initiates arecovery period, wherein the subject is prompted to recover from theprevious testing for a specified period of time. During process 909, thesubject's baseline measurements in recovery are measured and recorded.In process 911, the program running in the computer 231 initiates aStroop test, wherein the subject is exposed to a series of questionsrelated to color and word meaning within a specified period of time.During process 911, the subject's stress condition measurements aremeasured and recorded. In process 913, the program running in thecomputer 231 initiates a recovery period, wherein the subject isprompted to recover from the previous testing for a specified period oftime. During process 913, the subject's baseline measurements inrecovery are measured and recorded. In process 915, the program runningin the computer 231 initiates an Emotional Recall test, wherein thesubject is prompted to recall and retell the details of a stressfulevent that the subject has experienced within the recent past within aspecified period of time. During process 915, the subject's stresscondition measurements are measured and recorded. In process 917, theprogram running in the computer 231 initiates a recovery period, whereinthe subject is prompted to recover from the previous testing for aspecified period of time. During process 917, the subject's baselinemeasurements in recovery are measured and recorded. The periods of timespecified in this exemplary figure are each two minutes, however otherperiods of time may be specified in different embodiments, and each suchperiod of time may be set independently of the others.

FIG. 10 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 1, in which Relaxation Profiletesting is performed. In process 1001, the program running in thecomputer 231 initiates measurement and recording of the subject'sbaseline readings (heart rate, skin conductance, skin temperature, andrespiration rate) for a specified period of time. In process 1003, theprogram running in the computer 231 initiates a controlled breathingrelaxation protocol, wherein the subject is prompted to breathe at ameasured pace within a specified period of time. During process 1003,the subject's relaxation condition measurements (heart rate, skinconductance, skin temperature, and respiration rate) are measured andrecorded. In process 1005, the program running in the computer 231initiates a recovery period, wherein the subject is prompted to recoverfrom the previous testing for a specified period of time. During process1005, the subject's baseline measurements in recovery are measured andrecorded. In process 1007, the program running in the computer 231initiates a passive muscle relaxation protocol, wherein the subject isprompted to relax his or her muscles within a specified period of time.During process 1007, the subject's relaxation condition measurements aremeasured and recorded. In process 1009, the program running in thecomputer 231 initiates a recovery period, wherein the subject isprompted to recover from the previous testing for a specified period oftime. During process 1009, the subject's baseline measurements inrecovery are measured and recorded. In process 1011, the program runningin the computer 231 initiates an autogenics relaxation protocol, whereinthe subject is exposed to a series of autogenics techniques within aspecified period of time. During process 1011, the subject's stresscondition measurements are measured and recorded. In process 1013, theprogram running in the computer 231 initiates a recovery period, whereinthe subject is prompted to recover from the previous testing for aspecified period of time. During process 1013, the subject's baselinemeasurements in recovery are measured and recorded. In process 1015, theprogram running in the computer 231 initiates a guided imageryrelaxation protocol, wherein the subject is guided through mentalimagery procedures within a specified period of time. During process1015, the subject's relaxation condition measurements are measured andrecorded. In process 1017, the program running in the computer 231initiates a recovery period, wherein the subject is prompted to recoverfrom the previous testing for a specified period of time. During process1017, the subject's baseline measurements in recovery are measured andrecorded. In process 1019, the program running in the computer 231initiates a mindfulness relaxation protocol, wherein the subject isexposed to mindfulness exercises within a specified period of time.During process 1019, the subject's relaxation condition measurements aremeasured and recorded. In process 1021, the program running in thecomputer 231 initiates a recovery period, wherein the subject isprompted to recover from the previous testing for a specified period oftime. During process 1021, the subject's baseline measurements inrecovery are measured and recorded. The periods of time specified inthis exemplary figure may differ in different embodiments, and each suchperiod of time may be set independently of the others.

FIG. 11 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 8, in which basic training isprovided. In process 1101, the program running in the computer 231initiates practice with visual prompting of the specified relaxationprotocol for a specified period of time. During process 1101, thesubject's specified stress-indicating physiological parameter ismeasured and compared to the baseline measurement of process 101. Inprocess 1103, the program running in the computer 231 determines whetherthe subject's stress-indicating physiological parameter is within acertain range of the baseline measurement of process 101. Until thedetermination is positive, the program continues to loop back to thebeginning of process 1101. Upon a determination that the subject'sstress-indicating physiological parameter is within a certain range ofthe baseline measurement of process 101, the program initiates process1105, wherein the program running in the computer 231 initiates practicewith visual prompting of the specified relaxation protocol with visualfeedback information regarding the subject's specified stress-indicatingphysiological parameter for a specified period of time. During process1105, the subject's specified stress-indicating physiological parameteris measured and compared to the baseline measurement of process 101. Inprocess 1107, the program running in the computer 231 determines whetherthe subject's stress-indicating physiological parameter is within acertain range of the baseline measurement of process 101. Until thedetermination is positive, the program continues to loop back to thebeginning of process 1105. Upon a determination that the subject'sstress-indicating physiological parameter is within a certain range ofthe baseline measurement of process 101, the program initiates process1109, wherein the program running in the computer 231 initiates practicewithout visual prompting of the specified relaxation protocol but withvisual feedback information regarding the subject's specifiedstress-indicating physiological parameter for a specified period oftime. During process 1109, the subject's specified stress-indicatingphysiological parameter is measured and compared to the baselinemeasurement of process 101. In process 1111, the program running in thecomputer 231 determines whether the subject's stress-indicatingphysiological parameter is within a certain range of the baselinemeasurement of process 101. Until the determination is positive, theprogram continues to loop back to the beginning of process 1109. Upon adetermination that the subject's stress-indicating physiologicalparameter is within a certain range of the baseline measurement ofprocess 101, the subject is deemed to have passed the basic trainingprogram.

FIG. 12 is a block diagram of logical flow of an embodiment of thepresent invention, adding detail to FIG. 8, in which advanced trainingis provided. In process 1201, the program running in the computer 231initiates practice with visual prompting of the specified relaxationprotocol with visual feedback information regarding the subject'sspecified stress-indicating physiological parameter while exposing thesubject to the specified stress-inducing activity for a specified periodof time. During process 1201, the subject's specified stress-indicatingphysiological parameter is measured and compared to the baselinemeasurement of process 101. In process 1203, the program running in thecomputer 231 determines whether the subject's stress-indicatingphysiological parameter is within a certain range of the baselinemeasurement of process 101. Until the determination is positive, theprogram continues to loop back to the beginning of process 1201. Upon adetermination that the subject's stress-indicating physiologicalparameter is within a certain range of the baseline measurement ofprocess 101, the program initiates process 1205, wherein the programrunning in the computer 231 initiates practice without visual promptingof the specified relaxation protocol but with visual feedbackinformation regarding the subject's specified stress-indicatingphysiological parameter while exposing the subject to the specifiedstress-inducing activity for a specified period of time. During process1205, the subject's specified stress-indicating physiological parameteris measured and compared to the baseline measurement of process 101. Inprocess 1207, the program running in the computer 231 determines whetherthe subject's stress-indicating physiological parameter is within acertain range of the baseline measurement of process 101. Until thedetermination is positive, the program continues to loop back to thebeginning of process 1205. Upon a determination that the subject'sstress-indicating physiological parameter is within a certain range ofthe baseline measurement of process 101, the program initiates process1209, wherein the program running in the computer 231 initiates practicewithout visual prompting of the specified relaxation protocol andwithout visual feedback information regarding the subject's specifiedstress-indicating physiological parameter while exposing the subject tothe specified stress-inducing activity for a specified period of time.During process 1209, the subject's specified stress-indicatingphysiological parameter is measured and compared to the baselinemeasurement of process 101. In process 1211, the program running in thecomputer 231 determines whether the subject's stress-indicatingphysiological parameter is within a certain range of the baselinemeasurement of process 101. Until the determination is positive, theprogram continues to loop back to the beginning of process 1209. Upon adetermination that the subject's stress-indicating physiologicalparameter is within a certain range of the baseline measurement ofprocess 101, the subject is deemed to have passed the advanced trainingprogram.

FIG. 13 is a representation of a display of a welcome screen, by asubject's computer, in accordance with an embodiment of the presentinvention, wherein the computer is running a program for training thesubject to improve psychophysiological function. On this welcome screen,the subject is presented with title 1301. A button 1315 enables thesubject to create a new user profile. Upon creation of a user profile,the subject's user profile will be listed in window 1317. Buttons 1319and 1321 enable the subject to undergo Relaxation Profile and StressProfile testing, respectively. Buttons 1303, 1305, 1307, 1309, 1311, and1313 enable the subject to perform basic training sessions 1, 2, and 3,and advanced training sessions 1, 2, and 3, respectively.

FIG. 14 is a representation of a display of an attach-equipment screenassociated with the program of FIG. 13. On this screen, the subject ispresented with title 1401 and text window 1403, which provides thesubject with instructions on how to attach sensors (heart rate, skintemperature, respiration rate, and skin conductance). Buttons 1405,1407, 1409, and 1411 enable the subject to receive audio instructionsfor attaching sensors, with audio controls 1421. Images 1413, 1415,1417, and 1419 provide the subject with visual information regardingsuccessful attachment and functioning of the sensors.

FIG. 15 is a representation of measurement data, as a function of time,that is transmitted by a sensor interface device to the subject'scomputer when the subject is receiving training while the subject'scomputer is running the program of FIG. 13. Image 1501 displays thesubject's skin temperature measurement on a scale 1505 over time 1503.Image 1507 displays the subject's skin conductance measurement on ascale 1511 over time 1509. Image 1513 displays the subject's respirationrate measurement on a scale 1517 over time 1515. Image 1519 displays thesubject's respiration rate measurement on a scale 1523 over time 1521.

FIG. 16 is a representation of a screen display associated with astress-inducing activity (Stroop test 911) established and monitored bythe program of FIG. 13. On this screen, the subject is presented withtitle 1601, and text window 1603, a display of question numbers withindication of correct or incorrect. Image 1609 represents the meaning ofthe word being displayed. Image 1611 represents the color of the textbeing displayed. Buttons 1607 enable the subject to respond in theaffirmative or negative if the meaning display 1609 and the colordisplay 1611 match, thereby stressing the subject. Audio control 1605enables the subject to adjust the program's volume.

FIG. 17 is a representation of a screen display associated with astress-inducing activity (math test 903) established and monitored bythe program of FIG. 13. On this screen, the subject is presented withtitle 1701, and text window 1705, a display of question numbers withindication of correct or incorrect. Image 1703 presents the subject witha math problem. Buttons 1707 enable the subject to enter an answer tomath question 1703, thereby stressing the subject. Display 1709indicates time remaining (in minutes and seconds) in the activityrepresented on the screen display.

FIG. 18 is a representation of a screen display associated with astress-inducing activity (sound test 907) established and monitored bythe program of FIG. 13. On this screen, the subject is presented withtitle 1801 and volume control 1805. Blank window 1803 will producediscordant sounds to expose to the subject, thereby stressing thesubject.

FIG. 19 is a representation of a screen display associated with astress-inducing activity (stressful event recall 915) established andmonitored by the program of FIG. 13. On this screen, the subject ispresented with title 1901 and text window 1905, which provides thesubject with instructions on how to recall a particularly stressfulevent. Window 1903 provides the subject with a visual representation ofan individual recalling a stressful event to a practitioner, who now andagain may provide the subject with audio and visual prompts, controlledby volume control 1911. Box 1907 enables the subject to input typedetailing the stressful event recall, and button 1909 optionally allowsthe subject to enable voice recognition capabilities.

FIG. 20 is a representation of a display of a stress profile screen,wherein the results of activities associated with FIGS. 16-19 aresummarized and presented visually to the subject by the program of FIG.13. On this screen, the subject is presented with title 2001 and user ID#2003. Visual image 2005 and text boxes 2007 present the subject withinformation regarding the subject's skin conductance measurements overthe activities in Stress Profile testing associated with FIG. 9. Title2009, visual image 2011 and text boxes 2013 present the subject withinformation regarding the subject's skin temperature measurements overthe activities in Stress Profile testing associated with FIG. 9. Title2017, visual image 2019, and text boxes 2021 present the subject withinformation regarding the subject's respiration rate measurements overthe activities in Stress Profile testing associated with FIG. 9. Title2023, visual image 2025, and text boxes 2027 present the subject withinformation regarding the subject's heart rate measurements over theactivities in Stress Profile testing associated with FIG. 9. Title 2029,visual image 2031, and text boxes 2033 present the subject withinformation regarding the subject's heart rate variability measurementsover the activities in Stress Profile testing associated with FIG. 9.

FIG. 21 is a representation of screen display associated with testing,for effectiveness of controlled breathing for use in a relaxationprotocol, established and monitored by the program of FIG. 13. On thisscreen, the subject is presented with title 2101 and text window 2107,which provides the subject with instructions on how to undergo therelaxation-inducing protocol controlled breathing 1003. Window 2103provides the subject with a visual representation of a pacer forcontrolled breathing, by which the subject is provided visualinformation regarding how closely he or she is breathing in sync with aspecified respiration rate. Bar 2105 presents the subject with visualinformation regarding progress (time) through the exercise.

FIG. 22 is a representation of a screen display associated with testing,for effectiveness of passive muscle relaxation for use in a relaxationprotocol, established and monitored by the program of FIG. 13. On thisscreen, the subject is presented with title 2201 and text window 2205,which provides the subject with instructions on how undergo therelaxation-inducing protocol passive muscle relaxation 1007. Window 2203provides the subject with a visual representation of an individualundergoing passive muscle relaxation exercises with a practitioner, whonow and again may provide the subject with audio and visual prompts,controlled by volume control 2209. Button 2207 optionally allows thesubject to enable voice recognition capabilities.

FIG. 23 is a representation of a screen display associated with testing,for effectiveness of autogenics for use in a relaxation protocol,established and monitored by the program of FIG. 13. On this screen, thesubject is presented with title 2301 and text window 2303, whichprovides the subject with instructions on how undergo therelaxation-inducing protocol autogenics 1011. Window 2305 provides thesubject with a visual representation of an individual undergoingautogenics exercises with a practitioner, who now and again may providethe subject with audio and visual prompts, controlled by volume control2307. Button 2309 optionally allows the subject to enable voicerecognition capabilities.

FIG. 24 is a representation of a screen display associated with testing,for effectiveness of guided imagery for use in a relaxation protocol,established and monitored by the program of FIG. 13. On this screen, thesubject is presented with title 2401 and text window 2405, whichprovides the subject with instructions on how undergo therelaxation-inducing protocol guided imagery 1015. Window 2403 providesthe subject with a visual representation of an individual undergoingguided imagery exercises with a practitioner, who now and again mayprovide the subject with audio and visual prompts, controlled by volumecontrol 2409. Button 2407 optionally allows the subject to enable voicerecognition capabilities.

FIG. 25 is a representation of a screen display associated with testing,for effectiveness of mindfulness for use in a relaxation protocol,established and monitored by the program of FIG. 13. On this screen, thesubject is presented with title 2501 and text window 2505, whichprovides the subject with instructions on how undergo therelaxation-inducing protocol mindfulness 1019. Window 2503 provides thesubject with a visual representation of an individual undergoingmindfulness exercises with a practitioner, who now and again may providethe subject with audio and visual prompts, controlled by volume control2509. Button 2507 optionally allows the subject to enable voicerecognition capabilities.

FIG. 26 is a representation of a display of a relaxation profile screen,wherein the results of activities associated with FIGS. 21-25 aresummarized and presented visually to the subject by the program of FIG.13. On this screen, the subject is presented with title 2601 and user ID#2603. Title 2605, visual image 2607, and text boxes 2609 present thesubject with information regarding the subject's skin conductancemeasurements over the activities in Relaxation Profile testingassociated with FIG. 10. Title 2611, visual image 2613, and text boxes2615 present the subject with information regarding the subject's skintemperature measurements over the activities in Relaxation Profiletesting associated with FIG. 10. Title 2617, visual image 2619, and textboxes 2621 present the subject with information regarding the subject'srespiration rate measurements over the activities in Relaxation Profiletesting associated with FIG. 10. Title 2623, visual image 2625, and textboxes 2627 present the subject with information regarding the subject'sheart rate measurements over the activities in Relaxation Profiletesting associated with FIG. 10. Title 2629, visual image 2631, and textboxes 2633 present the subject with information regarding the subject'sheart rate variability measurements over the activities in RelaxationProfile testing associated with FIG. 10.

FIG. 27 is a representation of a screen display detailing a synthesizedsummary of the results associated with FIGS. 20 and 26, together with adetailed course of action that the subject will be caused to follow oversubsequent iterations of the program of FIG. 13. On this screen, thesubject is presented with title 2701 and text box 2709, wherein thesubject is presented with a detailed analysis and explanation of theStress Profile testing associated with FIG. 9, Relaxation Profiletesting associated with FIG. 10, and a synthesis thereof. Image scroll2703 presents the subject with a visual representation of theinformation provided in textbox 2709. Buttons 2705 and 2707 enable thesubject to scroll between images in the image scroll 2703.

FIG. 28 is a representation of a screen display providing a visualtemplate for the course of action associated with FIG. 27 by the programof FIG. 13. On this screen, the subject is presented with title 2801 andbox 2803, which displays time elapsed and time remaining (in minutes andseconds) for a particular training module. Window 2805 displaysinformation pertaining to the subject's selected stress-indicatingphysiological parameter. Window 2807 displays information pertaining tothe subject's selected relaxation protocol. Window 2809 displaysinformation pertaining to the subject's selected stress-inducingactivity. Arrow bars 2811, 2813, 2815, 2817, and 2819, taken together,present the subject with a simulated race challenge, wherein the subjectattempts to affect user ball 2815 to reach the end of its arrow barbefore balls 2811, 2813, 2817, and 2819 (opponent balls) reach the endof their respective arrow bars. The manner by which all balls move alongtheir respective arrow lines is a function of the magnitude ofdiscrepancy between the subject's stress condition measurements and aspecified baseline measurement of the selected stress-indicatingphysiological parameter. The closer the subject's stress-conditionmeasurement is to the target baseline measurement, the more likely thesubject's ball 2815 will reach the end of its arrow line before theopponent balls 2811, 2813, 2817, and 2819 reach the end of theirrespective arrow lines.

FIG. 29 is a representation of a visual progression of training sessionsassociated with the course of action presented in FIG. 27 that thesubject will experience in a sequenced manner as a function of theprogram of FIG. 13, from Basic Training I, II, and III through AdvancedTraining I, II, and III. This screen contains title 2901 and sixsequenced training phase images: 2903, 2905, 2907, 2909, 2911 and 2913,respectively. Image 2903 represents a display of Basic Training sessionI, wherein the subject will undergo processes 1101 and 1103, with theresults thereof to be presented real-time to the subject in the racegame associated with FIG. 28 (items 2811-2819). Image 2905 represents adisplay of Basic Training session II, wherein the subject will undergoprocesses 1105 and 1107, with the results thereof to be presentedreal-time to the subject in the race game associated with FIG. 28 (items2811-2819). Image 2907 represents a display of Basic Training sessionIII, wherein the subject will undergo processes 1109 and 1111, with theresults thereof to be presented real-time to the subject in the racegame associated with FIG. 28 (items 2811-2819).

Image 2909 represents a display of Advanced Training session I, whereinthe subject will undergo processes 1201 and 1203, with the resultsthereof to be presented real-time to the subject in the race gameassociated with FIG. 28 (items 2811-2819). Image 2911 represents adisplay of Advanced Training session II, wherein the subject willundergo processes 1205 and 1207, with the results thereof to bepresented real-time to the subject in the race game associated with FIG.28 (items 2811-2819). Image 2911 represents a display of AdvancedTraining session III, wherein the subject will undergo processes 1209and 1211, with the results thereof to be presented real-time to thesubject in the race game associated with FIG. 28 (items 2811-2819).

FIG. 30 is a representation of a screen display associated with thefirst of three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3001 and timer window 3003. Window 3005 provides the subject with avisual representation of a pacer for controlled breathing, by which thesubject is provided visual information regarding how closely he or sheis breathing in sync with a specified respiration rate. Arrow line andball images 3007, 3009, 3011, 3013, and 3015 together represent a visualimage of the race game associated with FIG. 28 (items 2811-2819).

FIG. 31 is a representation of a screen display associated with thesubject's attainment of a specific goal, established by the resultsassociated with FIGS. 20, 26, and 27, during the first of three basictraining sessions that the subject will undergo as established by thecourse of action associated with FIG. 27 by the program of FIG. 13. Onthis screen, the subject is presented with title 3101 and timer window3103. Window 3105 provides the subject with a visual representation of apacer for controlled breathing, by which the subject is provided visualinformation regarding how closely he or she is breathing in sync with aspecified respiration rate. Arrow line and ball images 3107, 3109, 3111,3113, and 3115 together represent a visual image of the race gameassociated with FIG. 28 (items 2811-2819). In this screen display, ball3111 has reached the end of its arrow before balls 3107, 3109, 3113, and3115 have reached the end of their respective arrow lines, the result ofwhich represents the subject's attaining a specified goal and passingthe training phase.

FIG. 32 is a representation of a screen display associated with thesubject's failure to attain a specified goal, established by the resultsassociated with FIGS. 20, 26, and 27, during the first of three basictraining sessions that the subject will undergo as established by thecourse of action associated with FIG. 27 by the program of FIG. 13. Onthis screen, the subject is presented with title 3201 and timer window3203. Window 3205 provides the subject with a visual representation of apacer for controlled breathing, by which the subject is provided visualinformation regarding how closely he or she is breathing in sync with aspecified respiration rate. Arrow line and ball images 3207, 3209, 3211,3213, and 3215 together represent a visual image of the race gameassociated with FIG. 28 (items 2811-2819). In this screen display, ball3209 has reached the end of its arrow before balls 3207, 3211, 3213, and3215 have reached the end of their respective arrow lines, the result ofwhich represents the subject's not attaining a specified goal and notpassing the training phase.

FIG. 33 is a representation of screen display associated with the secondof three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3301 and timer window 3303. Window 3305 provides the subject with avisual representation of a pacer for controlled breathing, by which thesubject is provided visual information regarding how closely he or sheis breathing in sync with a specified respiration rate. Window 3305provides the subject with a visual representation of his or her selectedstress-indicating physiological parameter. Arrow line and ball images3309, 3311, 3313, 3315, and 3317 together represent a visual image ofthe race game associated with FIG. 28 (items 2811-2819).

FIG. 34 is a representation of a screen display associated with thethird of three basic training sessions that the subject will undergo asestablished by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3401 and timer window 3403. Window 3405 provides the subject with avisual representation of his or her selected stress-indicatingphysiological parameter. Arrow line and ball images 3407, 3409, 3411,3413, and 3415 together represent a visual image of the race gameassociated with FIG. 28 (items 2811-2819).

FIG. 35 is a representation of a screen display associated with thefirst of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3501 and timer window 3503. Window 3507 provides the subject with avisual representation of a pacer for controlled breathing, by which thesubject is provided visual information regarding how closely he or sheis breathing in sync with a specified respiration rate. Window 3505provides the subject with a visual representation of his or her selectedstress-indicating physiological parameter. Window 3509 prompts thesubject to perform the selected stress-inducing activity for a period oftime. Arrow line and ball images 3511, 3513, 3515, 3517, and 3519together represent a visual image of the race game associated with FIG.28 (items 2811-2819).

FIG. 36 is a representation of a screen display associated with thesecond of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3601 and timer window 3603. Window 3605 provides the subject with avisual representation of his or her selected stress-indicatingphysiological parameter. Window 3607 prompts the subject to perform theselected stress-inducing activity for a period of time. Arrow line andball images 3609, 3611, 3613, 3615, and 3617 together represent a visualimage of the race game associated with FIG. 28 (items 2811-2819).

FIG. 37 is a representation of a screen display associated with thethird of three advanced training sessions that the subject will undergoas established by the course of action associated with FIG. 27 by theprogram of FIG. 13. On this screen, the subject is presented with title3701 and timer window 3703. Window 3505 prompts the subject to performthe selected stress-inducing activity for a period of time. Arrow lineand ball images 3707, 3709, 3711, 3713, and 3715 together represent avisual image of the race game associated with FIG. 28 (items 2811-2819).

FIG. 38 is a representation of a display of an end screen by the programof FIG. 13. On this screen, the subject is presented with title 3801 andcompany logo image 3807. Windows 3803 and 3805 provide the subject witha graphical representation of his or her progress and his or her scoreresults, respectively, through the processes associated with FIGS.16-19, 21-25, 30, and 33-37.

FIG. 39 schematically represents a microcontroller firmware process 3901associated with the system architecture of FIG. 2, in accordance with anembodiment of the present invention, for carrying out the methodembodiment of FIG. 1. In accordance with this embodiment, amicrocontroller first carries out an initialization process. Thefirmware reads the microcontroller power supply in process 3903 toensure stability and accuracy in measurements. If process 3903 returns avalue at or above a preset threshold, process 3905 is allowed to begin,whereby the controller reads sensory values provided by mechanism 225.If the value is below the preset threshold, state 3907 is assumed,whereby the controller recognizes that the battery power is too low forprocess 3905 to be properly carried out. This information is then sentto the computer via process 3909.

The firmware then calibrates the sensors in process 3911 to normalizethe measurements. Each sensor that is in need of adjustments iscalibrated one at a time, which is regulated via process 3913. If asensor is unable to provide calibrated measurements, status 3915 isentered, wherein the controller sends an error report to the computer inprocess 3917 and terminates. Process 3919 sends a confirmation report tothe computer if all sensors in need of calibration do so without error.

Once the report is sent, the microcontroller locks the calibrationsettings in process 3921, thereby enabling the device to begin readingsensors in process 3923 and sending measurements to the computer inprocess 3925. In processes 3923 and 3925, the controller enters a streamof communication with the host computer in which ADC is carried out foreach sensor and sent to the computer periodically.

If at any time an error occurs during operation of any of theaforementioned processes 3903-3925, processes 3927, 3929 and 3931 act todetect such an error and report it to the computer. Process 3927 detectserrors separately from the main program flow. This allows the device todetect various errors in process 3929, and interrupt the main programflow so as to allow process 3931 to send a report of the error to thehost computer.

FIG. 40 schematically represents an architecture of a power conditioner4001 associated with the system architecture of FIG. 2, in accordancewith an embodiment of the present invention, for carrying out the methodembodiment of FIG. 1. Four AA batteries 4003, 4005, 4007, and 4009 areconnected in series to supply a 6 volt voltage source. This voltage isconditioned in DC-to-DC converter 4011 to supply positive and negativesupply rails so as to ensure the stable operational amplifiers used tocarry out the method embodiment of FIG. 1. The voltage source level isthen reduced in regulator 4013 in accordance with 221 powerrequirements. This regulation process is monitored by a programexecuting in the microcontroller 4015 in accordance with processes 3903,3907, and 3909. The regulated power source is then supplied to the restof the device, as embodied by the load 4017.

FIG. 41 schematically represents an architecture of a skin conductancesensor pre-filter system 4101 associated with the system architecture ofFIG. 2, in accordance with an embodiment of the present invention, forcarrying out the method embodiment of FIG. 1. Skin conductance sensor4103 connects to DAQ board 209, and includes two finger straps 4105 and4111 for fixing the sensor to fingers of the subject, and two contacts4107 and 4109 for measuring skin conductance of the subject. Beforeconditioning the signal, a microcontroller controls the flow of thesignal in a process under control of microcontroller 4113 by eitherenabling or disabling sensor 4103. A high-pass filter 4115 filters thesignal from 4103 of high-frequency electrical noise so as to prepare thesignal for analog-to-digital conversion by ADC 225. A low-pass filter4117 filters the signal of DC electrical offset, so as to normalize andprepare the signal for conversion. The signal is then amplified inamplifier 4119 to a range suitable for conversion. A reference voltage4121 is supplied to the amplification circuitry 4119 so as to provide abaseline to which the signal deviates according to user stimuli. Thisoutput signal is then sent to ADC 225 as shown by block 4123.

FIG. 42 schematically represents an architecture of a respiration ratesensor pre-filter system 4201 associated with the system architecture ofFIG. 2, in accordance with an embodiment of the present invention, forcarrying out the method embodiment of FIG. 1. A breathing rate sensor4203 connects to DAQ board 209, and includes a chest strap 4205 forfixing the sensor to the subject, and a resistive belt 4207 formeasuring the expansion of the subject's chest. Instrumentationamplifier 4213 amplifies the signal from resistive belt 4207. Areference resistance 4209 provides a precision reference to thedifferential amplifier 4213 to compare to the unknown resistance in thesensor 4203 to produce a signal with optimal resolution and withoutmajor DC offset. A microcontroller 4211 controls this resistance so asto calibrate the sensor through the firmware process 3911. A referencevoltage 4215 is provided to the amplifier 4213 to provide a baseline towhich the signal deviates according to user stimuli. A high-pass filter4217 then filters the signal from the amplifier 4213 of high-frequencyelectrical noise so as to prepare the signal for ADC 225. A low-passfilter 4219 filters the signal from the high-pass filter 4217 of DCelectrical offset, so as to normalize and prepare the signal formeasurements in analog-to-digital conversion. The microcontroller alsocontrols the flow of the signal from the resistive belt 4207 to theamplifier 4213 in a firmware process 4211, in accordance to the methodsembodied by FIG. 39. This filtered signal is then sent to the controllerfor ADC 225 as shown by block 4221.

FIG. 43 schematically represents an architecture of a heart rate sensorsystem 4301 associated with the system architecture of FIG. 2, inaccordance with an embodiment of the present invention, for carrying outthe method embodiment of FIG. 1. The heart rate sensor 4303 includes aphotodiode 4305 that captures light emanating from an infrared diode4307. The finger clip 4309 keeps both diodes in fixed relation to thesubject's finger while process 4311 controls the electrical currentflowing to the infrared diode 4307. The absorbed infrared light isdetected by the photodiode 4305, producing a signal that is sent to4313, where it is filtered of high-frequency noise. This signal is thenfiltered of DC offset via a low-pass filter 4315. The filtered signal isthen amplified in 4317 with a baseline voltage reference 4319 and sentto process 225 to be converted into a digital format as shown by block4321.

FIG. 44 schematically represents an architecture of a skin temperaturesensor system 4401 associated with the system architecture of FIG. 2, inaccordance with an embodiment of the present invention, for carrying outthe method embodiment of FIG. 1. A temperature sensor 4403 is made of asensor 4407 which is strapped to the subject via a hand strap 4405. Amicrocontroller 4409 controls the signal flow from the sensor 4407 viafirmware embodied in process 3901. The signal is sent from sensor 4407to a high-pass filter 4411 and is filtered of any high-frequency noise.This signal is then filtered of any DC-offset in a low-pass filter 4413,after which the signal is amplified in accordance to 221 with areference voltage 4417 supplying a baseline for which the signaldeviates according to user stimuli. This filtered and formatted signalis then sent to ADC 225 as shown by block 4419.

The present invention may be embodied in many different forms,including, but in no way limited to, computer program logic for use witha processor (e.g., a microprocessor, microcontroller, digital signalprocessor, or general purpose computer), programmable logic for use witha programmable logic device (e.g., a Field Programmable Gate Array(FPGA) or other PLD), discrete components, integrated circuitry (e.g.,an Application Specific Integrated Circuit (ASIC)), or any other meansincluding any combination thereof.

Computer program logic implementing all or part of the functionalitypreviously described herein may be embodied in various forms, including,but in no way limited to, a source code form, a computer executableform, and various intermediate forms (e.g., forms generated by anassembler, compiler, networker, or locator.) Source code may include aseries of computer program instructions implemented in any of variousprogramming languages (e.g., an object code, an assembly language, or ahigh-level language such as Fortran, C, C++, JAVA, or HTML) for use withvarious operating systems or operating environments. The source code maydefine and use various data structures and communication messages. Thesource code may be in a computer executable form (e.g., via aninterpreter), or the source code may be converted (e.g., via atranslator, assembler, or compiler) into a computer executable form.

The computer program may be fixed in any form (e.g., source code form,computer executable form, or an intermediate form) either permanently ortransitorily in a tangible storage medium, such as a semiconductormemory device (e.g., a RAM, ROM, PROM, EEPROM, or Flash-ProgrammableRAM), a magnetic memory device (e.g., a diskette or fixed disk), anoptical memory device (e.g., a CD-ROM), a PC card (e.g., PCMCIA card),or other memory device. The computer program may be fixed in any form ina signal that is transmittable to a computer using any of variouscommunication technologies, including, but in no way limited to, analogtechnologies, digital technologies, optical technologies, wirelesstechnologies, networking technologies, and internetworking technologies.The computer program may be distributed in any form as a removablestorage medium with accompanying printed or electronic documentation(e.g., shrink wrapped software or a magnetic tape), preloaded with acomputer system (e.g., on system ROM or fixed disk), or distributed froma server or electronic bulletin board over the communication system(e.g., the Internet or World Wide Web.)

Hardware logic (including programmable logic for use with a programmablelogic device) implementing all or part of the functionality previouslydescribed herein may be designed using traditional manual methods, ormay be designed, captured, simulated, or documented electronically usingvarious tools, such as Computer Aided Design (CAD), a hardwaredescription language (e.g., VHDL or AHDL), or a PLD programming language(e.g., PALASM, ABEL, or CUPL.)

Embodiments of the present invention may be described, withoutlimitation, by the following clauses. While these embodiments have beendescribed in the clauses by process steps, an apparatus comprising acomputer with associated display capable of executing the process stepsin the clauses below is also included in the present invention.Likewise, a computer program product including computer executableinstructions for executing the process steps in the clauses below andstored on a computer readable medium is included within the presentinvention.

The embodiments of the invention described above are intended to bemerely exemplary; numerous variations and modifications will be apparentto those skilled in the art. All such variations and modifications areintended to be within the scope of the present invention as defined inany appended claims.

What is claimed is:
 1. A method of improving psychophysiologicalfunction of a subject with respect to a stress-inducing activity, usinga computer having an output interface, the method comprising: providing,by the computer to the subject, a profiling segment in which astress-indicating physiological parameter and a baseline value of thestress-indicating physiological parameter are determined for use inproviding a set of training segments; and providing, by the computer tothe subject, the set of training segments until the computer determinesthat a value of the stress-indicating physiological parameter is withina pre-defined range of the baseline value of the parameter, eachtraining segment in the set presenting the subject with one or morevisual, audible, or tactile prompts or a combination of such promptsusing the output interface, wherein at least one of the trainingsegments simultaneously presents the subject with a stress-inducingprompt while inducing the subject to perform a relaxation-inducingprotocol.
 2. The method according to claim 1, wherein thestress-indicating physiological parameter is determined in the profilingsegment, the method further comprising: receiving, by the computer, astream of measured values for each of a plurality of physiologicalparameters, each value in the stream being measured by a respectivesensor coupled to the subject; and selecting, by the computer, as thestress-indicating physiological parameter, the physiological parameterfor which the greatest variation of values exists within the respectivestream of measured values.
 3. The method according to claim 1, whereinthe baseline value of the stress-indicating physiological parameter isdetermined in the profiling segment, the method further comprising:receiving, by the computer, a stream of measured values for thestress-indicating physiological parameter, each value in the streambeing measured by a sensor coupled to the subject; and determining thebaseline range of values for the stress-indicating physiologicalparameter based on the greatest variation of its values.
 4. The methodaccording to claim 1, wherein providing the set of training segmentscomprises: providing a sequence of training segments selected from thegroup consisting of those segments that do not present thestress-inducing prompt and those segments that do present thestress-inducing prompt.
 5. The method according to claim 1, whereinproviding the set of training segments comprises providing a sequence oftraining segments that do not present the stress-inducing prompt and thesequence comprises, in any order: a training segment in which thesubject is prompted to perform the relaxation-inducing protocol; atraining segment in which the subject is prompted to perform therelaxation-inducing protocol while receiving feedback indicative of theat least one physiological parameter; and a training segment in whichthe subject receives feedback indicative of the at least onephysiological parameter without being prompted to perform therelaxation-inducing protocol.
 6. The method according to claim 1,wherein providing the set of training segments comprises providing asequence of training segments that do present the stress-inducing promptand the sequence comprises, in any order: a training segment in whichthe subject is simultaneously presented with the stress-inducing promptand induced to perform the relaxation-inducing protocol, while receivingfeedback indicative of the at least one physiological parameter; atraining segment in which the subject is presented with thestress-inducing prompt, but not induced to perform therelaxation-inducing protocol, while receiving feedback indicative of theat least one physiological parameter; and a training segment in whichthe subject is presented with the stress-inducing prompt, but notinduced to perform the relaxation-inducing protocol, while not receivingfeedback indicative of the at least one physiological parameter.
 7. Themethod according to claim 1, wherein the relaxation-inducing protocol isdetermined in the profiling segment, the method further comprising:presenting, by the computer to the subject, a set of relaxationexercises, and, for each relaxation exercise, recording a first set ofbiological measurements while the subject is performing the relaxationexercise and then recording a second set of biological measurementsduring a recovery period following performance of the relaxationexercise.
 8. A computer program product comprising a tangiblenon-transitory computer-readable storage medium on which is storesprogram code that, when executed by a processor of a computer having anoutput interface, causes the computer to implement a method of improvingpsychophysiological function of a subject with respect to astress-inducing activity, the method comprising: providing, by thecomputer to the subject, a profiling segment in which astress-indicating physiological parameter and a baseline value of thestress-indicating physiological parameter are determined for use inproviding a set of training segments; and providing, by the computer tothe subject, the set of training segments until the computer determinesthat a value of the stress-indicating physiological parameter is withina pre-defined range of the baseline value of the parameter, eachtraining segment in the set presenting the subject with one or morevisual, audible, or tactile prompts or a combination of such promptsusing the output interface, wherein at least one of the trainingsegments simultaneously presents the subject with a stress-inducingprompt while inducing the subject to perform a relaxation-inducingprotocol.
 9. The computer program product according to claim 8, whereinthe stress-indicating physiological parameter is determined in theprofiling segment, the method further comprising: receiving, by thecomputer, a stream of measured values for each of a plurality ofphysiological parameters, each value in the stream being measured by arespective sensor coupled to the subject; and selecting, by thecomputer, as the stress-indicating physiological parameter, thephysiological parameter for which the greatest variation of valuesexists within the respective stream of measured values.
 10. The computerprogram product according to claim 8, wherein the baseline value of thestress-indicating physiological parameter is determined in the profilingsegment, the method further comprising: receiving, by the computer, astream of measured values for the stress-indicating physiologicalparameter, each value in the stream being measured by a sensor coupledto the subject; and determining the baseline range of values for thestress-indicating physiological parameter based on the greatestvariation of its values.
 11. The computer program product according toclaim 8, wherein providing the set of training segments comprises:providing a sequence of training segments selected from the groupconsisting of those segments that do not present the stress-inducingprompt and those segments that do present the stress-inducing prompt.12. The computer program product according to claim 8, wherein providingthe set of training segments comprises providing a sequence of trainingsegments that do not present the stress-inducing prompt and the sequencecomprises, in any order: a training segment in which the subject isprompted to perform the relaxation-inducing protocol; a training segmentin which the subject is prompted to perform the relaxation-inducingprotocol while receiving feedback indicative of the at least onephysiological parameter; and a training segment in which the subjectreceives feedback indicative of the at least one physiological parameterwithout being prompted to perform the relaxation-inducing protocol. 13.The computer program product according to claim 8, wherein providing theset of training segments comprises providing a sequence of trainingsegments that do present the stress-inducing prompt and the sequencecomprises, in any order: a training segment in which the subject issimultaneously presented with the stress-inducing prompt and induced toperform the relaxation-inducing protocol, while receiving feedbackindicative of the at least one physiological parameter; a trainingsegment in which the subject is presented with the stress-inducingprompt, but not induced to perform the relaxation-inducing protocol,while receiving feedback indicative of the at least one physiologicalparameter; and a training segment in which the subject is presented withthe stress-inducing prompt, but not induced to perform therelaxation-inducing protocol, while not receiving feedback indicative ofthe at least one physiological parameter.
 14. The computer programproduct according to claim 8, wherein the relaxation-inducing protocolis determined in the profiling segment, the method further comprising:presenting, by the computer to the subject, a set of relaxationexercises, and, for each relaxation exercise, recording a first set ofbiological measurements while the subject is performing the relaxationexercise and then recording a second set of biological measurementsduring a recovery period following performance of the relaxationexercise.
 15. A device for training a subject to improvepsychophysiological function with respect to a stress-inducing activity,the device comprising: a processor; at least one sensor input coupled tothe processor, the at least one sensor input being connectable to a setof sensors coupled to the subject for measuring at least onephysiological parameter of the subject, at least one physiologicalparameter indicating stress in the subject, wherein the processor isprogrammed to receive from the sensors a measurement stream thatquantifies the at least one stress-indicating physiological parameter;an output interface coupled to the processor; and a non-transitorystorage medium storing program code that, when executed by theprocessor, causes the processor to implement a method of improvingpsychophysiological function of a subject with respect to thestress-inducing activity, the method comprising: providing, by theprocessor to the subject, a profiling segment in which astress-indicating physiological parameter and a baseline value of thestress-indicating physiological parameter are determined for use inproviding a set of training segments; and providing, by the processor tothe subject, the set of training segments until a computer determinesthat a value of the stress-indicating physiological parameter is withina pre-defined range of the baseline value of the parameter, eachtraining segment in the set presenting the subject with one or morevisual, audible, or tactile prompts or a combination of such promptsusing the output interface, wherein at least one of the trainingsegments simultaneously presents the subject with a stress-inducingprompt while inducing the subject to perform a relaxation-inducingprotocol.
 16. The device according to claim 15, wherein thestress-indicating physiological parameters is determined in theprofiling segment, the method further comprising: receiving, by theprocessor, a stream of measured values for each of a plurality ofphysiological parameters, each value in the stream being measured by arespective sensor coupled to the subject; and selecting, by theprocessor, as the stress-indicating physiological parameter, thephysiological parameter for which the greatest variation of valuesexists within the respective stream of measured values.
 17. The deviceaccording to claim 15, wherein the baseline value of thestress-indicating physiological parameter is determined in the profilingsegment, the method further comprising: receiving, by the processor, astream of measured values for the stress-indicating physiologicalparameter, each value in the stream being measured by a sensor coupledto the subject; and determining the baseline range of values for thestress-indicating physiological parameter based on the greatestvariation of its values.
 18. The device according to claim 15, whereinproviding the set of training segments comprises providing a sequence oftraining segments selected from the group consisting of those segmentsthat do not present the stress-inducing prompt and those segments thatdo present the stress-inducing prompt.
 19. The device according to claim15, wherein providing the set of training segments comprises providing asequence of training segments that do not present the stress-inducingprompt and the sequence comprises, in any order: a training segment inwhich the subject is prompted to perform the relaxation-inducingprotocol; a training segment in which the subject is prompted to performthe relaxation-inducing protocol while receiving feedback indicative ofthe at least one physiological parameter; and a training segment inwhich the subject receives feedback indicative of the at least onephysiological parameter without being prompted to perform therelaxation-inducing protocol.
 20. The device according to claim 15,wherein providing the set of training segments comprises providing asequence of training segments that do present the stress-inducing promptand the sequence comprises, in any order: a training segment in whichthe subject is simultaneously presented with the stress-inducing promptand induced to perform the relaxation-inducing protocol, while receivingfeedback indicative of the at least one physiological parameter; atraining segment in which the subject is presented with thestress-inducing prompt, but not induced to perform therelaxation-inducing protocol, while receiving feedback indicative of theat least one physiological parameter; and a training segment in whichthe subject is presented with the stress-inducing prompt, but notinduced to perform the relaxation-inducing protocol, while not receivingfeedback indicative of the at least one physiological parameter.
 21. Thedevice according to claim 15, wherein the relaxation-inducing protocolis determined in the profiling segment, the method further comprising:presenting, by the processor to the subject, a set of relaxationexercises, and, for each relaxation exercise, recording a first set ofbiological measurements while the subject is performing the relaxationexercise and then recording a second set of biological measurementsduring a recovery period following performance of the relaxationexercise.